Tire-valve.



PATENTED DEC. 20, 1904.

G. H. F. SCHRADER.

TIRE VALVE.

APPLICATION FILED JAN. 24. 1898 BEST AVAILABLECOP" N0 MODEL.

FIG, .3.

FIG. 2.

FIG. 7'

r10. 4,. FIG. 6. FI6.5.

FIG, 8.

FIG. 7,

INVENTOR: 5- Jdmwlwt By his Altar/10 's.

WITNESSES:

. To al ll'whom it may concern.-

- screwing in to make a leak-tight joint.

I specification.

tween the socket and chamber; and the invention provides an improved removable tubular seat member screwing into the socket washers, and Figzhis a plan of the packing BEST AvAitAu COP U ITED} STATES Patented December 20, 1904.

PATENT OFFICE.

GEORGE H. F. SUHRADER, OF NEW YORhfN. Y., ASSIGNOR A. SCHRA- DERS SON, INCORPORATED, OF NEW YORK, N.-Y., A CORPORATION OF NEW YORK,

Ties-VALVE.

SPECIFICATION forming part of Letters Taatent N0.777,812, dated December 20, 1904.

' Application filed January 24, 1898. Serial No. 667,728. i

Be it known that I, GEORGE H. F. Sennmsn, a citizen of theUnited States, residing in the city, county, and State of New'York, have in: vented certain newand useful Improvements in Tire-Valves, of which the following is a This invention relates to valves, and especially to pneumatic valves for tires, and aims to provide certain improvements therein.

To this end my invention .comprehends a valvehaving a shell adapted for connection to a tire and having avalve-chamber, an internal-serew-threaded socket leading from its outer end to the chamber, and a shoulder beand having as an integral or fixed part a seat within the chamber for engaging avalve proper; and the invention provides a movable packing-washer between the seat member and shell and means whereby this washer need not rotate with the screwing in or out of the seat member, but will be compressed with such I n the accompanying drawings, which show the preferred form of my invention, Figure l is a side elevation of a tire-valve. Fig. 2- is an axial section thereof with the parts in the closed position. Fig. 3 is a similar view, the internal parts being shown in elevation and held in'thc open position by the i nsertcd end of the inverted cap. Fig. 4; is an axial section of the seat member in its norn l condition, and Fig. is a side elevation thereof. Fig. 6 is a side elevation of the scat member i alone. Fig. 7 is a plan of one of the metal rings.

Referring to the drawings, A is the shell of a tire-valve. B is the cap thereof. (3 is the \nlvo-clnunbor. l) is the valvescat. E is the valve propor. l is ihe scat member. (l f is the pnokirig-washer. ll is the dcllator. l is the .srnwnv-thrmulod socket. .l is the drihitilig-lingwr on the cup, and l\' is :1 valve-spring. These parts may be of any usual or suitable i construction or character. In the construction shown the shell has an outer screw-thread 5 a, over which screws the cap B, which incloses the end of the shell when applied thereto, and the cap has the finger J, which is formed as a screw-driver which fits into the socket I and strikes the defiator to unseat the valve proper for deflation and enters a notch b in the member F to screw the latter in or out for assembling or separating the parts of the valve. The seat D is an annular seat, to

which leads an inlet-duct 0, traversing the member Finwardly from the socket I,i n which duct the stem H is fixed, as by having shoulders Z opposing shoulders 43 near the extremi- 1 tics of the duct. I

The valve proper is shown as composed of 5 a body of packing material If, such as rubber, and a cup-shaped casingg enveloping it andhaving an integral projecting guiding-tail It.

According to the preferred form of my present invention the packing-ring G is 7 swivcled to the seat member, so that the seat can revolve without revolving the packing, and there will he no injury to the latter due to distortion \vhilc'screwing in the plug. I prefer to form the seat member F as a tubular plug having the seat l) on its inner end, a shoulder i above the seat, a suumth-bottom groove j above the shoulder, a'shoulder A: above the groove, :1. plain portion l above the shoulder t and an external screw-thread 1/1. 0 at its outer end engaging and screwing into the thread of the socket l, so that the plug is entirely incloscd in the latter. I prefer to I (employ a ring of l'lllll-lfil tlfl the packing and to spring this over the shoulder i and into 5 the groove 'ol' the plug, mounting it rotutively on the latter. Between the ring and plug l prefer lo use antifriction or other washers l1, one being shown above and one below the ring, both of which are shown as metal rings or disks interposed between the shoulders of the member and the ends of the packing-ring. lho \vnsllors' have a central holev n of lossdianuztorl-hun tho'smaller shoul- Each washer is ol :1 llltHH-I'lvr ,s iii ioni. to pullout some distance shell is preferably formed with a smooth applied on the member by distorting them.

ness that ordinarily it closely embraces the washers.

vention.

beyond the adjacent portion of the member.- and each 13 free to revolveindependently of either the ring or member. The w share are enough to enable forcing them over the smaller or sent end of the member, after which they are flattened, which reduces their diameter to less than that of the shoulder 1 ,Zhe ring G is sprung over the member and washers by stretching it sufficiently to pass it over these and is contracted around the neck formed by the groove 7' between the two washers. It isof such diameter and thickneck at its inner side, while at its outer side it is of less PIOJGCiZiOD than the washers. The

wall or face M inwardly of the socket I and with a shoulder or contraction N between this wall and the valve-chamber C. The innermost washer L strikes the shoulderN when the member is screwed into the socket and is arrested and held by this shoulder during continued'screwing; in of the member. The outermost washer is forced in with the continued screwing in of the member. thus compressing the packing-ring between the washers, which distorts it outwardly and inwardly into such intimate contact with the wall M of the shelland the wall P at the bottom of the groove of the member that a leak-tight joint is made. The seat revolves with the member, but the washers remain stationary with the packing-ring, the friction of the lat tcr holding them against rotation. Thus the torsional strains due to screwing in or out are avoided by reason of the freedom with which the surfaces of the member will turn on the In screwing out the member tl lower shoulder i will bear against the lower washer L and lift the. latter, thus insuring withdrawal of the packing-ring after it has become adhered to the shell.

The seat member constitutes an improved article of manufacture which can be readily applied to any suitable valve by any ordinary person. I

In use the valve will be employed as are ordinary tire -valves, the seat member being screwed in to inclose the valve proper and be ing screwed out to renew, repair,-or clean the parts of the valve. If a packing-washer be comes damaged, another can be sprung into position between the washers.

It will be seen that my invention provides improvements which can be readily and advantageously availed of, and it will be understood that 1 do not limit myself to the particular details of construction, arrangement. and combination set forth as constituting its prclerrcd'form, since these may be modified or employed as circumstances or the judgment of those skilled in the art may dictate without departing from the spirit of them- BEST AVANJ XBLE CO sis ing an inner chamber and a valve properin' said chamber, in combination with a tubular a packing in said chamber compressed plug having a valve-seat entering said chamher, a packing in said chamber, means for positively holding said packing on 'said plug so that said packing is removable with'said plug, and means for preventing torsional distortion of said packing when the plug is rotated.

3. In tire and other valves, a valve-shell having an inner chamber and a valve proper in said chamber, in combination with a tubular plug h ring a valve-seat entering said chamher, an elastic and compressible packing in said chamber com pressed against said'shell by the screwing in of said plug, and means for preventing the torsional distortion of said packing during such rotary'movement of the p s:-

4:. In ti re and other valves, a val ve-shell havinga-n inner chamber and a valve proper in said chamber, in combination with a tubular plug having a valve-seat entering said cham her, a'packing in said chamber, means for positively holding said packing on said plug so that said packing is removable with said plug, and a washer interposed between said pack: ing and said plug wherebyto prevent torsional distortion of the packing when the plug is ro tated.

5. In tire and other valves, a shell having a vaive-chamber and a valve proper in said chamber. in combination with a tubular member screwing in saidshell and having a seat, a ring of compressible packing-material surrounding said member, means fen-positively holding said packing on said member, and means for preventing torsional distortion of said pack ing when said member is screwed into place to compress said packing.

6. Atire-valvehavingashelhaplugadapted to be secured thereto, a packing carried by said plug and rotatable relativcly '.theret0, said packing adn pted to be compressed between the shell and plugduringrelativc rotation thereof, means for positively holding said packing on said plug, and an antifriction device which permits such rotation to compress the pack- I ing without distorting thelatter.

7. in tire and other valves, ashcll havinga valve-chainher, a scrcw-tlrrcmled-socket, and a smooth wall between said chamber and socket, in combimition with a plug having an outer 1 l1l(\\-illlflil(l screwing in said socket, an inner sent within said chamber, and a smooth vvvgeze wall opposite thatof said sheli, end a ring of packing material between said smooth walls, compressed by the screwing in of said ping and thereby expanded against and making a tight joint with said wells, and an antifriction-washer between said ring and plug transmitting the inward movement of the plug to the ring and permitting rotation of theplug independently of the ring.

8. In tire and other valves, a shell having a valve-chamber and an outer screw-threaded socket, in combination with a tubular plug screwing in said socket, having a vaive-seat in said chamber and a shoulder outwardly of said seat, a ring of packing material between said shell and plug making a leak-tight joint therebetween, and an antifriction-washer between said ring and said shoulder transmitting the axial movement of the shoulder to the ring and permitting independent rotation of the plug.

9. In tire and other valves,avalve-shell having a. chamber C, a screw-threaded socket I, and a shoulder N therebetween, in combination with a seat member screwing into said socket end carrying a valveseat in said chamber, a ring of packing material surrounding said seat member, and a washer between said ring and said shoulder, said seat member compressing said ring toward said washer and nu EQT AVAlLABLE C thereby distorting it to make a tight joint be tween the shell and member. r

10. A. plug for tires-elves havinga vaiveseat, a packing adapted to be compressed against a valve-sheil, means for positively holding said packing on said plug adapted to permit relative rotation thereof, and means for preventing twisting of the packing when it is compressed during rotary movement of the plug. 4 4 e 11. As a new articleof manufacture, a seat member for tire-valves having a valve-seat at one end, a screw-thread at its other end, and a reduced portion between its ends, and a ring of packing material surrounding said reduced portion, and a washer between said ring and member.

12. As a new article of manufacture, a seat member for ti re-valves having it valveseet D, a; screw-threaded end, e groove j between it? ends, shoulders Z; and i above and below sai groove, washers L surrounding said gr0ove,-

and a packing-ring Gr between said washers. In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

" GEO; H. F. SCHRADER.

Witnesses:

GEORGE H.-FRA SER,

THOMAS F. WALLACE. 

